CN101985292A - Cladding section with airbag flap assembly in the interior of a motor vehicle - Google Patents

Cladding section with airbag flap assembly in the interior of a motor vehicle Download PDF

Info

Publication number
CN101985292A
CN101985292A CN2010102398903A CN201010239890A CN101985292A CN 101985292 A CN101985292 A CN 101985292A CN 2010102398903 A CN2010102398903 A CN 2010102398903A CN 201010239890 A CN201010239890 A CN 201010239890A CN 101985292 A CN101985292 A CN 101985292A
Authority
CN
China
Prior art keywords
airbag cover
inner piece
transmission channel
lid
airbag
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN2010102398903A
Other languages
Chinese (zh)
Inventor
乌多·瓦格纳
乌尔里克·里克
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GM Global Technology Operations LLC
Original Assignee
GM Global Technology Operations LLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE200910034923 external-priority patent/DE102009034923A1/en
Priority claimed from DE200910034916 external-priority patent/DE102009034916A1/en
Application filed by GM Global Technology Operations LLC filed Critical GM Global Technology Operations LLC
Publication of CN101985292A publication Critical patent/CN101985292A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/20Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
    • B60R21/215Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components characterised by the covers for the inflatable member
    • B60R21/2165Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components characterised by the covers for the inflatable member characterised by a tear line for defining a deployment opening
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/20Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
    • B60R21/205Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components in dashboards

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Air Bags (AREA)

Abstract

A cladding section (50) is provided for a passenger compartment of a motor vehicle. An airbag flap arrangement (51) is located in the cladding section (50), and pivots along at least one hinge line (52, 53) during the actuation of an airbag. This type of cladding section provides that it have one stepped height difference (60) on the surface relative to the passenger compartment, and that the airbag flap arrangement (51) is located in the area of the height difference.

Description

The inner piece that has the airbag cover device in the automotive interior space
Technical field
The present invention relates to the inner piece in a kind of automotive interior space, wherein, an airbag cover device is arranged in this inner piece, and this airbag cover device is around at least one hinge lines upset when air bag triggers.
Background technology
This inner piece that is used for air bag module is widely applied at automobile, especially uses in conjunction with its instrument carrier panel in car.The airbag cover device for example has lid, and it is fixed along hinge lines and at least one tear line, and wherein, tear line is torn and covers along hinge and overturns when air bag triggers.The also known airbag cover device that has a plurality of lids, especially two lids, wherein, each lid can be around hinge lines upset and correspondingly is formed with tear line at lid with between the inner piece portion section of this lid or other airbag cover.
It is mild, less or almost do not have a surface of lines that the ejection door of the copilot air bag of sealing in the instrument carrier panel and the airbag cover device of opening this ejection door when the copilot air bag activates have.Because open lid arrangement is a highly dynamic process, bears Preload at this process middle cover device proper, wishes that therefore the complexity of lid arrangement itself keeps as far as possible little.This is structure realization mild and plane basically by lid arrangement.
The structure on the mild and plane of lid arrangement and the planar structure of surrounding the transmission channel of this lid arrangement in addition have such shortcoming in its side towards the automotive interior space, promptly, thereby another liner that can be seen by the passenger towards the automotive interior space, the instrument carrier panel that especially forms described another liner in appearance can not be by very dynamic with stronger lines design ground.
Disclose a kind of airbag guide at the liner that is used for air bag module by DE 10 2,006 008 564 A1, this airbag guide guarantees that the air bag that is filled with gas of air bag module when air bag module triggers can launch also therefore can protect the passenger with damaging.
Summary of the invention
Technical matters to be solved by this invention is that expansion design starts the inner piece of described type like this, that is, make described inner piece have dynamic outward appearance by the special tectonic in the airbag cover device zone.
This technical matters solves thus, that is, inner piece has stair-stepping diff-H on the surface towards the inner space and has the ladder that has height fall in other words, and the airbag cover device is positioned at the zone of diff-H.
Therefore, can give the outward appearance of the dynamic structure in automotive interior space owing to described stair-stepping diff-H by inner piece of the present invention.The vision upward mobility of this inner space in airbag cover device zone also allows automotive interior space and airbag cover device adjacent areas, especially instrument carrier panel correspondingly to design stair-stepping diff-H, therefore is designed to the outward appearance of dynamic structure.Then, the height of another liner, the especially instrument carrier panel that can be seen by the passenger can be followed the different height change of inner piece portion section of airbag cover device zone and this airbag cover device of encirclement.
The stair-stepping diff-H of described inner piece can be in a different manner arranges or structure with method, wherein, this structure necessarily and the airbag cover device whether have one unique or a plurality of, especially two airbag cover are relevant.
Irrelevant with the quantity of airbag cover, the stair-stepping diff-H ladder of height fall (or have) can be at the airbag cover device with surround between the inner piece portion section of this airbag cover device and extend.Therefore, stair-stepping diff-H is realized by the lid arrangement and the transition of surrounding between the inner piece portion section of this lid arrangement.Formed the outward appearance of the dynamic structure of inner piece by the stair-stepping diff-H transition region from lid arrangement to the inner piece portion section of surrounding this lid arrangement.
If especially the airbag cover device has two airbag cover that can overturn around a hinge lines respectively, tear line in the middle of between described airbag cover, especially being formed with one, some kinds of favourable structures of inner piece have then been formed, so that realize the outward appearance of its dynamic structure by stair-stepping diff-H.At this, the airbag cover device can always form the side direction tear line respectively between hinge lines and middle tear line.In addition, hinge lines preferred parallel ground is arranged.Stair-stepping diff-H or the ladder that has a height fall for example extend along middle tear line.The structure favourable according to another kind is designed to, and described stair-stepping diff-H intersects with the hinge lines of one of two airbag cover and the side direction tear line of this airbag cover.In addition, this stair-stepping diff-H can intersect with the hinge lines and the middle tear line of two airbag cover.
Can be regarded as advantageously around the airbag cover of hinge lines upset if the airbag cover device has unique one alternatively, the side direction tear line adjoins each other in the end of hinge lines, and this tear line connects another tear line in its other end scope.Therefore realized that described unique airbag cover is simple in structure and can cheap supporting of making in the inner piece portion section of surrounding this airbag cover.Under this situation with unique airbag cover, hinge lines and other tear line is preferred arranges substantially parallelly.Guaranteed that by this structure tear line tears reliably when air bag triggers, because when air bag triggered and runs into airbag cover, the power that is delivered to airbag cover caused air bag to be torn along the regulation of tear line.
If stair-stepping diff-H intersects with hinge lines and/or other tear line, perhaps at lid arrangement with surround between the inner piece portion section of this lid arrangement and extend, design airbag cover device has a unique airbag cover and is considered to favourable.
Except stair-stepping diff-H or have the ladder of height fall, each airbag cover preferably is designed to flat basically.Except its structure in stair-stepping diff-H zone, make lid keep less complexity by described structure.
According to a kind of special form of implementation regulation of the present invention, transmission channel is the component part of inner piece, and described airbag cover device seals the ejection door of transmission channel when air bag does not trigger.Because described transmission channel constitutes the component part of inner piece, so this transmission channel is equipped with the height projection equally and helps this zone at liner at its surf zone towards the automotive interior space, especially realizes dynamic strong lines in this zone of instrument carrier panel.
On described airbag cover device next door one airbag guide can be set, this airbag guide is arranged on the airbag cover device that places off position and the gap between the described transmission channel.Therefore airbag guide is supported its expansion when airbag aeration, and supports it to pass transmission channel and eject from this transmission channel.In this case, especially in inner piece portion section, thereby in the transition region of transmission channel, form the height projection from the airbag cover device to this airbag cover device of encirclement.Because the airbag cover device needn't have different height, this airbag cover device can be simply by means of hinge with can open circuitedly be connected in the zone that is bearing in tear line, and only need after can open circuited connection disconnecting, lid arrangement be overturn around the axis that forms by hinge.When lid was opened, air bag was uninterruptedly along the ejection door of airbag guide guiding through transmission channel.
Be provided with two lids according to a kind of special form of implementation of the present invention, wherein, two Gai Zaixiang deviate from side and are connected with transmission channel by means of hinge, and two lids are by means of can open circuited connection linking to each other.
Therefore, when the air bag of air bag module triggers, owing to be delivered to the power that covers by air bag two connections between the lid are disconnected, therefore two cover under the effect of air bag and are turned to the automotive interior space around its hinge axes.
Fully a lid can only be set, this covers in a side, especially be connected with described transmission channel by means of at least one hinge in a side back to airbag guide, and at opposite side, especially adjacent with an airbag guide side has at least one and can open circuitedly be connected, and links to each other with described transmission channel by this connection.
Described hinge is preferably designed for flexible hinge, especially fabric hinge or film hinge.This hinge can be made in this way especially simply, especially is configured to moulding.It can unitary construction be a moulding that described transmission channel, airbag guide, at least one lid and at least one hinge and at least one can open circuitedly be connected.
According to a kind of preferred form of implementation regulation, each lid is configured to plate, especially is configured to have the thin-walled part of strengthening rib.Therefore for to construct to such an extent that quite thin plate has formed enough rigidity, it is guaranteed in damage, especially Gai the fragmentation of opening lid and can not occur covering when covering the effect top load.
Especially the differing heights on the surface of transmission channel surface and/or airbag guide especially produces by ladder or inclined-plane.Be to select ladder or inclined-plane finally to depend on to give the liner of air bag module or the outward appearance of another liner innervation with which kind of degree.
Described airbag guide can be the independent member that is bearing in the transmission channel.But also can consider, make airbag guide and transmission channel form a structural unit, therefore construct integratedly.As another replacement scheme, airbag guide can form a structural unit with the instrument panel structure of automobile.Especially when airbag guide was independent member, it was preferably designed for foam element.Airbag guide is especially made by metal or plastics.
, especially use in conjunction with another thin-wall liner by liner of the present invention, this another liner has the surface of attaching troops to a unit in the automotive interior space for this reason.This surface has diff-H, and this diff-H is equivalent to the surface of airbag cover device and surrounds inner piece portion section, the especially transmission channel of this airbag cover and the diff-H of airbag guide.This another liner is instrument carrier panel preferably, especially the instrument carrier panel in the assistant driver seat zone.This another liner can have hard or soft surface.If the use pressure release surface then should the surface especially be stained with film or foaming.
For the outward appearance of outward appearance, the especially instrument carrier panel that can be configured to the liner of air bag module dynamicly, the present invention especially advises, at the oblique or stair-stepping diff-H of the surface of instrument carrier panel surface and transmission channel surface and airbag guide realization.These height projections both can also can be extended on curve ground point-blank.The profile of design cover makes and covers mild no longer as far as possible and the plane earth structure like this.This means in the zone of lid arrangement or on this device next door, have or stair-stepping diff-H, for example in the zone on transmission channel surface and airbag guide surface, have or stair-stepping diff-H.Formed the ejection door of transmission channel by this structure, this ejection door only part covers air bag.For at airbag deployment time guiding air bag, be provided with an airbag guide.This airbag guide prevents from when the air bag height loads dynamically to damage air bag or instrument carrier panel, because air bag is uninterruptedly by towards the ejection door direction guiding.
A kind of concrete expansion scheme of the present invention relates to a kind of liner that is used for the air bag module of automobile, it has a transmission channel and at least one and is bearing in being used in this transmission channel and seals the lid of transmission channel ejection door, wherein, transmission channel has the surface towards the inner space of automobile, and the lid that is in detent position has towards the inner space of automobile, basically flat surface, and described the lid in a side is connected with transmission channel by means of at least one hinge, and described the lid have at least one at opposite side and can open circuitedly connect, and this is connected lid and is disconnected when opening.In addition, be provided with an airbag guide in this junction on the lid next door, this airbag guide is arranged in the gap between lid in the closed position and the transmission channel, wherein, transmission channel surface and airbag guide form by the portion's section with differing heights respectively towards the surface in automotive interior space, wherein, the zone of the rising of transmission channel and airbag guide is adjacent to arrange, and the uninflated zone of transmission channel and airbag guide and lid be adjacent to arrange, the surface of lid basically with the surperficial concordant of zone that do not raise of transmission channel and airbag guide.
Having a transmission channel and at least one by the another kind of preferred form of implementation of inner piece of the present invention is bearing in being used in this transmission channel and seals the lid of transmission channel ejection door.This transmission channel has towards the surface in automotive interior space, and the lid that is in detent position has the surface towards the automotive interior space.Cover in a side and be connected with transmission channel by at least one hinge, and have at least one in that side back to this side and can open circuitedly connect, this is connected lid and is disconnected when opening.Described transmission channel surface and cap surface constitute by portion's section of differing heights respectively, and wherein, the rising zone of transmission channel and lid is adjacent to arrange, and the not rising zone of transmission channel and lid is adjacent to arrange.
This structure also realized a kind of can be in automobile blanket liner, especially a kind of liner that is arranged in the automobile behind another liner and has obvious lines structure.
In this form of implementation, the element of lid and transmission channel and encirclement lid designs respectively has different height.The height of other liner, the especially instrument carrier panel that can be seen by the passenger can be followed these different height change so.This structure of liner or instrument carrier panel has been given the automotive interior space and has been had the outward appearance of dynamic structure.
In this form of implementation, the articulated structure of described transmission channel and lid for example forms by different hinges in the zone of differing heights.Therefore, on two height different, that form in the zone at transmission channel or lid respectively, these two parts can overturn by different hinges each other.Although such situation is arranged, that is, the height projection is arranged also in the pull zone of liner, can by use different hinges realize described lid not by overtighten, stable upset.
Being considered to particularly advantageous is, if be that the hinge that connects the zone that do not raise of transmission channel and lid has the ring that extends at least on the height of transmission channel or lid extends.Formed the material that makes lid can in upset face, stablize upset by this ring and put aside, because this ring is out of shape when lid is opened and form the structure that is elongated basically then.
Therefore, two set lids make when the air bag of air bag module triggers, owing to be delivered to power in the lid by air bag, the connection between two lids is disconnected, and therefore two cover and are being turned in the inner space of automobile around its hinge under the effect of air bag.For example a lid is designed to flat board, and another lid for example comprises the portion's section with different wall having the cap surface portion section of differing heights with formation.
The differing heights of realizing at least one lid zone of transmission channel and liner can differently be arranged.Therefore for example can be designed as, the inclined-plane and/or the ladder that are formed by differing heights intersect with the hinge lines that is formed by hinge.What it is also conceivable that is, this inclined-plane and/or ladder with intersect by the tear line that can open circuitedly be connected to form.
Other features of the present invention are drawn by following description of drawings and accompanying drawing itself, wherein are noted that all features and details, and the fwd explanation all is main points of the present invention.
Description of drawings
The preferred embodiment of the invention is shown in the drawings and in following detailed description.
Show a kind of inner piece in the diagram, wherein lid arrangement is made of two butterfly valves, in following view:
Fig. 1 is at the height raised structures of overlooking two butterfly valves of connection that there is shown in the tear line zone;
Fig. 2 is the lateral plan by the structure of Fig. 1;
Fig. 3 and 4 is the structure of two airbag cover views by Fig. 1 and 2, wherein, and the extension in the zone of the hinge lines of an airbag cover and side direction tear line of height projection;
Fig. 5 and 6 is the another kind of form of implementation of airbag cover structure views by Fig. 1 and 2, and wherein, described height projection is blocked the hinge lines and the tear line that is connected two airbag cover of two airbag cover.
In addition, show the concrete structure of inner piece:
Fig. 7 is the space view of a kind of form of implementation of liner, and this liner has a transmission channel and an airbag guide;
Fig. 8 is the cutaway view that dissects these parts by the section II-II among Fig. 7;
Fig. 9 is the space view of seeing from oblique upper of the embodiment that revises of the embodiment of relative Fig. 7,
Figure 10 is that the another kind that has the inner piece of transmission channel is constructed the view of seeing from oblique upper, and it does not have airbag guide, and two sections that mark are arranged in this view;
Figure 11 is the cutaway view that dissects these parts by the section II among Figure 10;
Figure 12 is the cutaway view that dissects these parts by the section III among Figure 10.
The specific embodiment
Fig. 1 and 2 shows in the automotive interior space, especially first kind of form of implementation of the inner piece 50 of the instrument panel area of car (copilot's air bag is arranged in this zone).Described inner piece 50 has airbag cover device 51.This airbag cover device has two airbag cover 54,55 that can overturn around a hinge lines 52,53 (or hinge 52,53) respectively.Tear line 56 in the middle of between described airbag cover, forming, therefore, this tear line is formed on when air bag triggers and can open circuitedly connects, and this connection is designed to bridging piece.Described hinge lines 52 and 53 is arranged in parallel to each other.Hinge lines 52 and 53 has been connected the side direction tear line 57 and 58 that is parallel to each other and arranges in its free end zone, thus side direction tear line 57 and 58 and hinge lines 52 and 53 form a rectangle.Described side direction tear line 57 and 58 define in the side airbag cover 54 with 55 and same as can open circuitedly be connected or bridging piece with respect to inner piece portion section 59 location that surround described airbag cover 54,55.
Described inner piece 50 has the diff-H that is designed to ladder 60 at it on the surface in car inner space, and airbag cover device 51 is positioned at the zone of diff-H.Particularly, ladder 60 extends along middle tear line 56, thus its along shown in the slight bending of middle tear line 56 and bending and slight curving is extended the inner piece portion section 59 that two side direction tear lines 57,58 enter into encirclement airbag cover device 51.Air bag trigger and thereby when two airbag cover 54 and 55 being loaded by the airbag of safety air bag, airbag cover device 51 is torn along middle tear line 56 and side direction tear line 57,58, makes two airbag cover 54,55 are turned in the automotive interior space around its hinge lines 52,53.At this, the disconnection of airbag cover device 51 is carried out between flat airbag cover 55 and the airbag cover 54 being configured to, described airbag cover device tear line place in the middle of directly close on has ladder 60, and backstop lid 54 gently extends to hinge lines 52 from the zone that this ladder 60 increases.
Be that by the form of implementation of Fig. 3 and 4 and difference by the form of implementation of Fig. 1 and 2 middle tear line 56 is set to straight, and airbag cover device 51 is divided into the airbag cover 54,55 of two same configuration, therefore, middle tear line 56 is parallel to hinge lines 52 and 53 and arranges.In addition, in this form of implementation, ladder 60 be arranged on like this airbag cover device 51 the zone and around inner piece portion section 59 in, make the ladder 60 that extends along slight curving line in the zone of airbag cover 54, intersect with tear line 52 and side direction tear line 58.Therefore, the height projection only design the zone of airbag cover 54 and be arranged in the zone of this airbag cover 54 around inner piece portion section 59 in.
Be that with difference the position of ladder 60 is different by Fig. 5 and 6 form of implementation by the form of implementation of Fig. 3 and 4.Vertically the still slight curving ladder 60 of trend not only intersects with hinge lines 52 but also with hinge lines 53, and therefore also intersect with middle tear line 56.At this, ladder 60 is divided into two sub regions with airbag cover device 51, and wherein, described disconnection is for example carried out between side direction tear line 57 and 58 in the centre of airbag cover device 51.
Press in a kind of concrete form of implementation of Fig. 7 and 8 in the present invention, show the liner 1 that is used for air bag module, to understanding very important components of the present invention, the structure of transmission channel 2, the lid 3 that has two ejection doors 5 that are used to seal transmission channel 2 and 4 airbag cover device 30 are specifically arranged, and an airbag guide 6.Air bag module element such as air bag, ignition device etc. are not illustrated.
Described transmission channel 2 is designed to annular and is used for ejecting its air bag when air bag module triggers.This transmission channel 2 has two longitudinal sides 7 of arranging and 8 that are parallel to each other basically are connected this longitudinal side with two side 9 and 10.At its off position, two lids 3 and 4 occupy the cross-sectional plane of ejection door 5 basically.Lid 3 is designed to rectangle in the zone of one end, and is designed to triangle in the zone of the other end.Another lid 4 is trapezoidal in the zone of each end.Lid 3 is connected in the zone of its side 7 with transmission channel 2 by hinge 11.Two lids 3 with 4 in the opposed side edges zone by a plurality of be designed to bridging piece, can open circuitedly be connected 13 and interconnect.
Described transmission channel 2 have corresponding to the loop configuration of transmission channel 2, annular ring around surface 14, this surface is towards automobile, especially the inner space of car.Two lids 3 and 4 shown in detent position also have surface 15 towards the automotive interior space.Because the end of the triangular construction of lid 3 has formed the clearance envelope that is used for holding the airbag guide 6 that is bearing in transmission channel between the angular zone in the zone of lid 3 and transmission channel 2 sides 7 and 10.This airbag guide is represented with Reference numeral 16 towards the surface in automotive interior space.
Transmission channel 2, lid 3 and 4 and airbag guide 6 in the zone of its surface 14,15 and 16, be capped in a not shown manner by another thin-wall liner, this liner is the instrument carrier panel liner in the co pilot's seat zone of automobile especially.Airbag is unlocked when air bag is triggered, and when airbag is inflated this airbag by airbag guide 6 by direction guiding towards ejection door 5.Described airbag is in two plates 3 of when inflation extruding and 4, so bridging piece 13 is owing to be delivered to the power of cover in 3 and 4 and disconnect, and two cover 3 and 4 and can be turned to its open position around the axis of hinge 11 and 12.At this, other liner is torn.Therefore, in liner, form an ejection door for airbag.Airbag can be ejected in the inner space of automobile and protects the passenger by this mouthful.
Described hinge 11 and 12 is designed to fabric hinge or film hinge, is flexible therefore.
As press shown in the cutaway view of Fig. 2, two lids 3 and 4 are designed to flat basically.Lid 3 and 4 has flat basically surface 15 respectively on its whole length.Described transmission channel 2 is in itself and lid 4 adjacent areas and also have flat basically surf zone 14 in the zone of side 9.At the off position of two lids 3 and 4, the surface 15 of the described zone on surface 14 and two lids 3 and 4 forms a plane basically.
Different therewith is, the surface 14 of transmission channel 2 is not flatly to construct in the zone that surrounds airbag guide 6, but has height projection 17 from the side 7 of transmission channel 2 and side 9 adjacent ends.Surface 14 extends to the side 7 of transmission channel 2 and the bight in 10 zones on the higher height that forms thus, and from this continuation at the extensions that approximately extending to two disconnections seams between the lid 3 and 4 on the height that raises always, from this, extend to another height projection 18 of high height in side 10 zones and extend to lower height in this side area.Therefore, described transmission channel 2 has the surf zone 14b of raise the surf zone 14a of height and the height that do not raise.
Basically airbag guide 6 triangular in shape in birds-eye view is not configured to flat equally.It has the surf zone 16a of rising in the folding corner region of side 7 and 10 is closed on surface 16.Airbag guide 6 remaining areas, just it does not have the surf zone 16b of rising, by being connected with the surf zone 16a that raises with the 18 height projections 19 of evenly arranging with height projection 17.The relative angular zone of transmission channel 2 in side 7 and 10 zones, the surf zone 16a of this rising forms a flat surface, and this surface constitutes by surf zone 16a and 14a.
Because transmission channel 2 and airbag guide 6 described differing heights are poor, can make the liner that covers these parts have tangible lines equally by the tangible lines of these parts at 4 o'clock the lid 3 that forms the plane and.Therefore have such possibility, that is, air bag module can be constructed with tangible lines in appearance by the liner that the passenger sees dynamicly.
Only be with difference by the embodiment of Fig. 9 by the embodiment of Fig. 7 and 8, only substitute two lids 3 and 4 with a lid 4, this lid is equivalent to by the embodiment middle cover 3 of Fig. 1 and 4 shape, wherein, omitted and be arranged on two bridging pieces 13 between the lid 3 and 4, but between lid 3 and 4, a lasting captive joint is set, to form lid 4 by embodiment shown in Figure 3.Lid 4 is connected with transmission channel 2 in the zone of side 9 by means of hinge 12.Can open circuited connection 13 with the form of bridging piece in the zone of the side 10 of transmission channel, specifically be before height projection 18, among the uninflated surf zone 14b plate 4 to be connected with transmission channel 2.
Described airbag guide 6 for example is designed to foam element.This airbag guide especially is made of plastics.Metal also always is suitable as the material that is used for airbag guide.
The surface towards the automotive interior space of the liner that another can be seen by the passenger has diff-H, and this diff-H is equivalent to the diff-H on the surface of transmission channel 2 and airbag guide 6, and constructs corresponding to its flat basically surface in the zone of lid 3 and 4.This liner can have hard or soft surface.The liner that has a pressure release surface is especially bonding or form by foam by film.
The another kind of form of implementation of pressing Figure 10 to 12 below is described:
Described transmission channel 102 is designed to annular and is used to eject its air bag when air bag module triggers.This transmission channel 102 has two longitudinal sides 106 of arranging and 107 that are parallel to each other basically are connected this longitudinal side with two side 108 and 109.Two lids 103 and 104 that form lid arrangement 130 occupy the cross-sectional plane of ejection door 105 basically at its off position.Lid 103 is adjacent to be connected with the side 106 of transmission channel 102 with 111 by two hinges 110 with side 106.Each hinge 110 or 111 extend throughs slightly are shorter than the length of covering 103 half length.Lid 104 is connected with transmission channel 102 by means of hinge 112 in its side towards the side 107 of transmission channel 102, wherein, hinge 112 has such length, and this length slightly is shorter than covers 104 in its length in the side regions of the side 107 of transmission channel 102.Two lids 103 with 104 in opposite directions side by means of a plurality of be designed to bridging piece, can open circuitedly be connected 113 and interconnect.
Transmission channel 102 have corresponding to the loop configuration of transmission channel 102, annular ring around surface 114, this surface is towards automobile, especially the inner space of car.The off position of two lids 103 and 104 shown in it also has the surface 115 towards the automotive interior space.Transmission channel 102 and lid 103 and 104 are capped by means of another thin-wall liner in the zone on its surface 114 and 115 in a not shown manner, and this liner is the instrument carrier panel in the assistant driver seat zone of automobile especially.This instrument carrier panel can design and have hard surface or soft surface.When air bag triggers, airbag is two lids 103 and 104 of extruding when inflation, and therefore, bridging piece 113 is disconnected owing to being delivered to the power of covering in 103 and 104, and two lids 103 and 104 can be turned to its open position around hinge 110 and 111 or 112, and tear liner at this.Therefore, in liner, formed an ejection door for air bag.Air bag can be ejected in the inner space of automobile and protects the passenger by this ejection door.
Described hinge 110,111 and 112 is designed to fabric hinge or film hinge, is flexible therefore.
By cutaway view as can be known, lid 104 is designed to flat basically.Therefore, cover on its whole length and have flat basically surface 115.Transmission channel 102 also has flat basically surface 114 in itself and lid 104 adjacent areas.At the off position of two lids 103 and 104, the zone that the surface 115 of lid 104 and the surface of transmission channel 102 114 surround lid forms a plane basically.
Different therewith is that the surface 114 of transmission channel 102 is not designed to flat in the zone that surrounds another lid 103, but from side 107, has height projection 116 greatly about half length place of side 109.Surface 114 extends to the side 109 of transmission channel 102 and the bight in 106 zones always on the height that forms thus, and extends to the side 106 and 108 zones of intersecting mutually of transmission channel 102 on the height that raises slightly from this continuation with descending.At this, form another height projection 117 of the lower height of high height in side 107 zones from side 106 zones.Therefore, transmission channel 102 has the surf zone 14b of raise the surf zone 14a of height and the height that do not raise.
Different with lid 104 is that lid 103 is designed to not be flat, and is adjacent to have the surf zone 115a of rising in the zone on its surface 115 with the bight of side 106 and 109.Lid 103 remaining zone, just it does not have the surf zone 115b that raises to be connected with the surf zone 115a that raises by height projection 118.The surf zone 115a that raises has formed a plane that constitutes by surf zone 115a and 114a with respect to the folding corner region of transmission channel 102 in side 106 and 109 zones.
Especially as can be known by the view of Figure 11 and 12, because height projection 117 and 118, lid 103 realizes with the hinge 110 that is connected by being arranged on lower height of transmission channel 102, and cover 103 with being connected of transmission channel 102 higher level zones by means of hinge 111 realizations that are arranged on high height.This means do not having to make under the situation of addition thereto that covering the 103 upset axis around the hinge 110 that is arranged on differing heights and 111 overturns.Realize covering 103 the upsets of identical upset axis in hinge 110 and 111 zones when being turned to its open position in order to load and therefore cover 103 and 104 at air bag, described hinge 110 is designed at transmission channel 102 or covers the ring that extends on 103 the height.This ring is not realized in the zone of the hinge 111 that is arranged on high height.
View by Figure 10 also can learn, height projection 116 or 117 or 118 with by hinge 110 and 111 hinge lines that form or with intersect by covering the tear lines that can open circuitedly be connected 113 formation between 103 and 104.
Basically can in described sightless integrated liner, arrange ladder in this wise, make this ladder both also intersect with hinge lines with tear line.Therefore as shown in the figure, copilot's airbag cover can realize having at least two different height.Because at least one hinge lines of height projection extend past is so need make lid overturn on two differing heights.
At this on the one hand, the instrument carrier panel that has crust or pressure release surface can slightly differently design:
In having the instrument carrier panel of crust, hinge means is divided into hinge 110 and 111 in the zone of height projection.Hinge is that flat retaining element is fixed on like this and covers on 103 by one in a side, make a hinge 111 be arranged in the first half of lid, and another hinge 110 is arranged in the lower part of lid like this, promptly, form material savings of a ring-type at this, this material savings makes and cover 103 and can stably overturn in upset face.Flat owing to being configured to, another lid 104 upset in upset face after all is no problem.
Now, in the zone on lid 103 higher these planes, formed a gap between retaining element and lid, this gap can be used to connect described two parts.This connection is necessary, bears very high physical load because cover 103 in the process of airbag-releasing.In order to prevent that parts from getting loose, therefore also connect at this.Fill described gap for this reason like this, make two parts to connect.This can realize by arranging rib 119 rightly, but also can consider to insert other parts.
Having on the instrument carrier panel of pressure release surface equally two hinges 110 of use and 111 in the zone at lid 103.A hinge 111 is arranged on the first half of lid, and another hinge 110 is provided with the lower part of lid, has therefore formed described ring-shaped material savings, and this material savings makes that covering 103 can stably overturn in upset face.At this, described being fixed under the situation that does not have additional retaining element realized, for example by injection moulding.For the plane of action that guarantees that air bag is stable, in the zone of lid 103 the first half, continued the trend of the lower part of lid.Therefore produced a structure that constitutes by two and half shells that has cavity.Can be by means of arranging the rib filling rightly and reinforcing this cavity.But alternatively, also can or fill and lead up and cover the diff-H between the lower part on 103 by means of the coating foam by the optional feature that other is set.
List of numerals
1 liner
2 transmission channels
3 lids
4 lids
5 ejection doors
6 airbag guides
7 sides
8 sides
9 sides
10 sides
11 hinges
12 hinges
13 connection/the bridging pieces that can disconnect
14 surfaces
The surf zone that 14a raises
The uninflated surf zone of 14b
15 surfaces
16 surfaces
The surf zone that 16a raises
The uninflated surf zone of 16b
17 height projections
18 height projections
19 height projections
30 airbag cover devices
50 inner pieces
51 airbag cover devices
52 hinge lines
53 hinge lines
54 airbag cover
55 airbag cover
Tear line in the middle of 56
57 side direction tear lines
58 side direction tear lines
59 around inner piece portion section
60 ladders
101 liners
102 transmission channels
103 lids
104 lids
105 ejection doors
106 sides
107 sides
108 sides
109 sides
110 hinges
111 hinges
112 hinges
113 can open circuitedly connect/bridgeware
114 surfaces
The surf zone that 114a raises
The uninflated surf zone of 114b
115 surfaces
The surf zone that 115a raises
The uninflated surf zone of 115b
116 height projections
117 height projections
118 height projections
119 ribs
130 airbag cover devices

Claims (15)

1. the inner piece in the inner space of an automobile (1,50,101), wherein, an airbag cover device (30,51,130) is positioned in this inner piece (1,50,101), this airbag cover device when air bag triggers along at least one hinge lines (10,11,12; 52,53; 111,112) upset is characterized in that described inner piece (1,50,101) has stair-stepping diff-H (16,17,18 on the surface of described inner space; 60; 117,118,119), and described airbag cover device (30,51,130) be positioned at described diff-H (16,17,18; 60; 117,118,119) in the zone.
2. inner piece as claimed in claim 1 is characterized in that, described airbag cover device (30,51,130) has two can be respectively around a hinge lines (10,11,12; 52,53; 111,112) Fan Zhuan airbag cover (3,4; 54,55; 103,104), between described two airbag cover, especially form a middle tear line (13; 56; 113).
3. inner piece as claimed in claim 2 is characterized in that, forms side tear line (57,58) respectively between described hinge lines (52,53) and described middle tear line (56).
4. as claim 2 or 3 described inner pieces, it is characterized in that described hinge lines (10,11,12; 52,53; 111,112) arrange in parallel to each other.
5. as the described inner piece of one of claim 1 to 4, it is characterized in that described stair-stepping diff-H (117,118,119) extends between the inner piece portion section (59) of described lid arrangement (130) and this lid arrangement of encirclement.
6. as the described inner piece of one of claim 2 to 4, it is characterized in that described stair-stepping diff-H (60) extends along described middle tear line (56).
7. as the described inner piece of one of claim 2 to 4, it is characterized in that the hinge lines (52) of (54) in described stair-stepping diff-H (60) and described two airbag cover (54,55) and the side tear line (57) of this airbag cover (54) intersect.
8. as the described inner piece of one of claim 2 to 4, it is characterized in that described stair-stepping diff-H (16,17,18,60,117,118,119) with two airbag cover (3,4,54,55,103,104) described hinge lines (10,11,52,53,111) and middle tear line (13,56,113) intersect.
9. inner piece as claimed in claim 1, it is characterized in that, described airbag cover device (30) have one unique can be around the airbag cover (4) of hinge lines (12) upset, and a tear line (13) in the side and/or with described hinge lines (12) relatively with described airbag cover (4) with around inner piece portion section (59) be connected.
10. inner piece as claimed in claim 9 is characterized in that, described hinge lines (12) and described another tear line are arranged substantially parallelly.
11., it is characterized in that described stair-stepping diff-H (60) intersects with described hinge lines and/or described tear line or extends as claim 9 or 10 described inner pieces between the inner piece portion section (59) of described lid arrangement (30) and this lid arrangement of encirclement.
12., it is characterized in that removed described stair-stepping diff-H (16,17,18,60,117,118,119), described airbag cover (3,4,54,55,103,104) is designed to flat basically as the described inner piece of one of claim 1 to 11.
13. as the described inner piece of one of claim 1 to 12, it is characterized in that, one transmission channel (2,102) be described inner piece (1,101) component part, and described airbag cover device (30,130) seals described transmission channel (2 when air bag does not trigger, 102) ejection door (5,105).
14. inner piece as claimed in claim 13, it is characterized in that, on described airbag cover device (130) next door one airbag guide (106) is set, this airbag guide is arranged in the airbag cover device (130) and the gap between the described transmission channel (103) in the closed position.
15. inner piece as claimed in claim 13, it is characterized in that, form by portion's section respectively towards the transmission channel surface (14) in described automotive interior space and the surface (15) of described airbag cover device (30) with differing heights, wherein, described transmission channel (14) and rising zone (14a described lid (3,4), 16a) be adjacent to arrange, and described transmission channel (14) (14b 16b) is adjacent to arrange with not rising zone described lid (3,4).
CN2010102398903A 2009-07-28 2010-07-26 Cladding section with airbag flap assembly in the interior of a motor vehicle Pending CN101985292A (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
EP10000963.8 2009-07-27
DE102009034923.5 2009-07-28
DE200910034923 DE102009034923A1 (en) 2009-07-28 2009-07-28 Cladding section for passenger airbag in instrument panel of passenger compartment in motor vehicle i.e. passenger car, has airbag flaps pivoted around parallel hinge lines upon airbag actuation to form central tear line
DE102009034916.2 2009-07-28
DE200910034916 DE102009034916A1 (en) 2009-07-28 2009-07-28 Cladding section for passenger airbag in instrument panel of passenger compartment in motor vehicle i.e. passenger car, has airbag flaps pivoted around parallel hinge lines upon airbag actuation to form central tear line
EP10000963.8A EP2284048B1 (en) 2009-07-28 2010-01-30 Cladding section with airbag flap assembly in the interior of a motor vehicle

Publications (1)

Publication Number Publication Date
CN101985292A true CN101985292A (en) 2011-03-16

Family

ID=43061390

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2010102398903A Pending CN101985292A (en) 2009-07-28 2010-07-26 Cladding section with airbag flap assembly in the interior of a motor vehicle

Country Status (3)

Country Link
US (1) US8672344B2 (en)
EP (1) EP2284048B1 (en)
CN (1) CN101985292A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102826050A (en) * 2011-06-17 2012-12-19 标致·雪铁龙汽车公司 Suspended decorating plate and vehicle instrument board with same

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3000449B1 (en) * 2012-12-27 2016-02-05 Faurecia Interieur Ind INTERIOR VEHICLE CLUTCH PIECE SUITABLE FOR COVERING AN INFLATABLE SAFETY CUSHION
US9975517B2 (en) * 2016-04-22 2018-05-22 Honda Motor Co., Ltd. Vehicle restraint apparatus and methods of use and manufacture thereof
US9975514B1 (en) * 2017-03-31 2018-05-22 Ford Global Technologies, Llc Automotive air bag chute door hinge with variable extension
ES2873823T3 (en) * 2018-04-26 2021-11-04 Faurecia Interieur Ind Airbag system for a vehicle and manufacturing method of the airbag system
KR102572301B1 (en) * 2021-01-25 2023-08-30 현대모비스 주식회사 Tear inducing apparatus for PAB door and manufacturing method thereof
US11603072B2 (en) * 2021-08-06 2023-03-14 Autoliv Asp, Inc. Dual stage inflator
US11891011B1 (en) 2022-09-22 2024-02-06 Faurecia Interior Systems, Inc. Airbag tear seam

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4893833A (en) * 1988-09-08 1990-01-16 Tip Engineering Group, Inc. Closure for an air bag deployment opening
US20060022440A1 (en) * 2004-07-29 2006-02-02 Junichi Umehara Airbag module
EP1731381A2 (en) * 2005-06-09 2006-12-13 Volkswagen AG Base module for an airbag device, associated airbag device, manufacturing method and manufacturing tool for an airbag module
CN101003269A (en) * 2006-01-16 2007-07-25 丰田合成株式会社 Air bag lid
CN101112886A (en) * 2006-07-25 2008-01-30 现代摩比斯株式会社 Cushion of air bag apparatus
US7556285B1 (en) * 2008-02-06 2009-07-07 Takata Corporation Airbag cover, instrument panel, airbag device and airbag casing

Family Cites Families (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2848547A1 (en) * 1978-11-09 1980-05-22 Daimler Benz Ag COVER FOLDING DOWN FOR A FOLDED GAS PILLOW
DE3315535A1 (en) 1983-04-29 1984-03-22 Daimler-Benz Ag, 7000 Stuttgart Cover for an inflatable gas bag
US5342085A (en) * 1990-12-19 1994-08-30 Mazda Motor Corporation Air bag apparatus for automotive vehicle
DE4306149A1 (en) 1993-02-27 1994-09-01 Opel Adam Ag Cover for the aperture of a chamber accommodating an air bag
US5816609A (en) * 1994-06-13 1998-10-06 Textron Automative Company, Inc. Trim panel having air bag door
US6012735A (en) * 1994-06-13 2000-01-11 Textron Automotive Company Trim panel having air bag door
DE4420929A1 (en) 1994-06-16 1995-08-17 Daimler Benz Ag Cover for inflatable air bag in vehicle
WO1999005007A1 (en) 1997-07-23 1999-02-04 Toyota Shatai Kabushiki Kaisha Panel for air bags and method of manufacturing the same
US5829778A (en) * 1997-07-31 1998-11-03 General Motors Corporation Air bag restraint system
JP2998745B2 (en) 1997-10-09 2000-01-11 トヨタ自動車株式会社 Instrument panel with integrated airbag door
DE19847386A1 (en) 1998-10-14 1999-09-23 Daimler Chrysler Ag Impact protection device for vehicle occupants
DE10135614A1 (en) 2001-07-21 2003-02-13 Findlay Ind Deutschland Gmbh Cover for airbag hidden behind inner cover of door, provided with pre- determined breaking line across rear surface
DE10204333B9 (en) 2002-02-01 2005-07-21 Peguform Gmbh & Co. Kg Retraction mechanism for the lining of an airbag system
GB0207087D0 (en) 2002-03-26 2002-05-08 Peguform Gmbh Air bag cover assembly
DE10305545A1 (en) 2003-02-10 2004-08-26 Peguform Gmbh & Co. Kg Reinforcement for a gas bag covering formed as part of a synthetic plastic structural part with weakened regions useful for automobile accident protection gas bags
DE10306385A1 (en) 2003-02-15 2004-11-11 Adam Opel Ag Guidance channel with guide ribs for deployment of airbag in road vehicle is situated under dashboard with panel hinging at flexure
ES1055843Y (en) 2003-10-29 2004-05-01 Seat Sa DEVICE FOR CONTROLLING THE OPENING OF THE CLOSING COVER OF AN AIRBAG.
DE102004013036B4 (en) * 2004-03-26 2011-04-14 Faurecia Innenraum Systeme Gmbh Device for head and / or shoulder impact protection in the event of a side collision and / or a rollover
WO2006111212A1 (en) 2005-04-20 2006-10-26 Eissmann Automotive Deutschland Gmbh Cover for an airbag and method for the production thereof
JP4601388B2 (en) * 2004-10-20 2010-12-22 カルソニックカンセイ株式会社 Airbag attachment structure
US7234726B2 (en) 2004-12-16 2007-06-26 Visteon Global Technologies, Inc. Airbag assembly for improving force distribution
US7429058B2 (en) 2005-08-17 2008-09-30 Chrysler Llc Passenger airbag door
DE102006008564B4 (en) 2006-02-22 2009-06-10 Peguform Gmbh Air bag guide with cover
DE102006016724B4 (en) 2006-04-04 2010-03-11 Faurecia Innenraum Systeme Gmbh Interior trim part for covering an airbag and method for its production
FR2900890B1 (en) 2006-05-09 2009-03-27 Faurecia Interieur Ind Snc EQUIPMENT PIECE FOR MOTOR VEHICLE AND ASSOCIATED MOTOR VEHICLE
US7669884B2 (en) 2006-05-09 2010-03-02 Honda Motor Co., Ltd. Air bag device
JP4231519B2 (en) * 2006-11-24 2009-03-04 トヨタ自動車株式会社 Knee airbag device with column
DE102006060688C5 (en) 2006-12-18 2018-05-24 Faurecia Innenraum Systeme Gmbh Interior trim part
DE102007034894B4 (en) 2007-07-24 2009-06-18 Takata-Petri Ag airbag cap
FR2921611B1 (en) 2007-10-02 2010-05-07 Renault Sas INFLATABLE BAG SAFETY DEVICE FOR MOTOR VEHICLE
KR100890774B1 (en) * 2007-11-28 2009-03-31 현대모비스 주식회사 Air bag door for vehicles

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4893833A (en) * 1988-09-08 1990-01-16 Tip Engineering Group, Inc. Closure for an air bag deployment opening
US20060022440A1 (en) * 2004-07-29 2006-02-02 Junichi Umehara Airbag module
EP1731381A2 (en) * 2005-06-09 2006-12-13 Volkswagen AG Base module for an airbag device, associated airbag device, manufacturing method and manufacturing tool for an airbag module
CN101003269A (en) * 2006-01-16 2007-07-25 丰田合成株式会社 Air bag lid
CN101112886A (en) * 2006-07-25 2008-01-30 现代摩比斯株式会社 Cushion of air bag apparatus
US7556285B1 (en) * 2008-02-06 2009-07-07 Takata Corporation Airbag cover, instrument panel, airbag device and airbag casing

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102826050A (en) * 2011-06-17 2012-12-19 标致·雪铁龙汽车公司 Suspended decorating plate and vehicle instrument board with same
CN102826050B (en) * 2011-06-17 2016-04-20 标致·雪铁龙汽车公司 Floated trim board and there is the Vehicular instrument panel of this trim board

Also Published As

Publication number Publication date
EP2284048A1 (en) 2011-02-16
US8672344B2 (en) 2014-03-18
EP2284048B1 (en) 2014-03-12
US20110018241A1 (en) 2011-01-27

Similar Documents

Publication Publication Date Title
CN101985292A (en) Cladding section with airbag flap assembly in the interior of a motor vehicle
US20150035261A1 (en) Foam-in-place interior panels having integrated airbag doors including substrates with airbag chute-door assemblies for motor vehicles
US7287618B2 (en) Collision object protection assembly
CN103847678B (en) Active bolster with the active exhaust port for load management
CN105083200B (en) Gapless passenger airbag system
US5335937A (en) Cover for vehicle occupant impact protection device
CN101570214B (en) Motor vehicle with an a-column and airbag incorporated therein
CN102177052B (en) Modularly constructed interior trim component having a firing channel module for an airbag
KR100890774B1 (en) Air bag door for vehicles
CN101254774B (en) Mounting structure for airbag apparatus
US8944460B2 (en) Air bag chute topper system
CN101346261A (en) Airbag device
CN102476621A (en) Passenger air-bag door
JP3959673B2 (en) Insert member for airbag door
US7597349B2 (en) Air bag device
EP1327564A2 (en) Knee protecting airbag device
CN107199984A (en) The cushion pad and its manufacture method with the gentle softgel shell of airbag cover integrated of vehicle
US20230001877A1 (en) Component for vehicle interior
KR102452475B1 (en) Driver air bag apparatus for vehicle
CN105270313B (en) Active bolster with the initiative exhaust hole for being formed in connection protrusion
US20070018434A1 (en) Airbag apparatus cover and airbag apparatus
CN101506004B (en) Airbag covering, airbag module and steering wheel
EP1393990B1 (en) Air-bag-door-equipped vehicle interior trim article and method for fabricating the same
US20180056916A1 (en) Backrest for a vehicle seat and vehicle seat with the backrest
JP3964344B2 (en) Cover structure of air bag device

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C02 Deemed withdrawal of patent application after publication (patent law 2001)
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20110316